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山丘地区修建各式水、旱梯田及其相应的水系工程,有效地控制了坡面水土流失,创造了坡缓、田平、土厚、保蓄水肥力强的适耕土壤和就地调节迳流增加灌溉水量等优越的种植条件。 四川省有坡耕地3500万亩以上,近十多年来每年改造面积近40万亩,其中土(即坡地,下同)改田(水稻田)约占1/4。为了使这些得之不易的水土资源,发挥更大的生产潜力,在射洪、资
The construction of various types of water and terrace in the hill area and its corresponding water system project effectively controlled the water and soil loss on the slope surface and created the suitable soil for slope cultivation, Flow to increase irrigation water and other superior planting conditions. In Sichuan Province, there are more than 35 million mu of sloping farmland, with an area of nearly 400,000 mu each year in the past 10 years. Among them, about one-fourth of the total amount of soil (ie, sloping fields and the same below) is changed to paddy fields. In order to make these hard-earned land and water resources play a greater potential for production,